Oil lamp



FIG. 1 is a perspective view of an oil lamp showing my new design;

FIG. 2 is a top plan view;

FIG. 3 is a bottom plan view;

FIG. 4 is a side elevational view thereof, the cylindrical chimney being shown in cross-section; and

FIG. 5 is an exploded perspective view of the interior unit, the chimney being omitted for convenience of illustration. 

The ornamental design for an oil lamp, substantially as shown and described. 